I just installed a panasonic h/u. the rest of my system is stock.. i have a 96gle.. after i installed it the sounds is louder, but at the expense of a hissing noise.. its the noise you get when you turn ur music up and there is no music... but there isnt silence, there is a staticy hissing noise... my theory is my stock amp is too powerful, anyway i can turn it down?? i tried messing wit the settings wit the h/u.. no luck.. the only time i dont hear the static noise is when the VOL is 00 or SOO HIGH where the music will be louder... but other than that.. its there.. even when the VOL is 01.. PLEASE HELP!! thanks in advance...

 

I highly doubt that your amp is "too powerful"

How did you wire it because I can almost guarantee it's not wired correctly. Do you have Bose or non-Bose?

 

well the amp is the STock bose amp.. not my own... im pretty sure my wiring isnt wrong.. otherwise it shouldnt work.. i even tried disconnecting the amp wire.. but the sound didnt come out.. so i had to reattach the amp wire so i could get the sound to come back..

 

Your sending an amplified signal to an amplifier. That will definately give you hissing noises and potentially fry your HU amp. You need to bypass the BOSE amp or get yourself a line-level convertor.

 

I think its in your wiring, most likely something is wrong there. Where did you ground the unit?

 

A LOC would do absolutely nothing for adding a HU, thats for adding an amp.

 

The BOSE amplifier is amplifying an amplified signal. That is bad.

An LOC would convert the amplified signal from the speaker outs of the HU, which I assume he used, back to an low level output signal.

Another option would be to try and run RCA's from the HU then splice the end of the RCA cable to the BOSE amp. But I have no idea if that would work. Not familiar with BOSE amps.

 

Metra 70-7551. Use it.

/thread.

 

Would be the most sensible option. Why add more potential problems in the signal path? A LOC is used when RCAs are non existant, I dont believe he has that problem. The other option (as posted) would be the 7551 harness.

 

Hey Don how ya been?

 

eh busy as usal.

 

Ditto...haven't been around much, new job is keepin me busy.

 

So is my new job. Picked up more lines as well.

 

New job eh? I'll give ya a call this week, see what's been good.

 

sounds like a plan.. so if i buy that.. the rca will bypass the builtin amp in the headunit? plus i wont blow my amp and speakers..??

 

correct


...

 

I used a PAC-ROEM-NIS2 and it works fine.

 

just bought the metra off ebay... why does the rca bypasses the amp??

 

It doesnt bypass it, thats the point of using it.

 

The RCA's that come out of the back of your receiver are low level output (not amplified). That is the signal you want to send to the OEM Bose amp. The Bose will then amplify that signal to your speakers.

The way you have it now can cause sever damage to either HU amp or Bose amp or both.

 

i see so by using the rca.. it doesnt use the h/u amp..

 

correct....

 

just installed the metra thing.. the hissing noise is gone.. but now there is a new noise.. everytime i change tracks... or switch from radio to cd to aux e.t.c.. or turning the volume up from zero.. it makes a thump noise.... does that mean my amp is goin to blow up?

 

no worry, just ground the RCA's and that noise will go away. It seems to be a common problem with panasonic decks for some reason.

P.S Make sure when you ground your RCA's, you dont let the ground touch the positive tip on the inside of the RCA's, only the outter shield.

 

Ground WHAT RCA and WHERE? IMO if you have to go about doing ghetto rigging then the deck was not designed right.

 

so the sound will go away??? i hope so.. and put tape around the rca so it wont touch nething else? i dont understand this part,"Make sure when you ground your RCA's, you dont let the ground touch the positive tip on the inside of the RCA's." how do you ground your rca?

 

djfrestyl, when I say ground the RCA, I do mean ghetto rigging them yes. Take a short wire the same guage as remote wire, strip about an inch of it and wrap it around the shield of the RCA, then take the other side of the same wire and ground it either to the common ground on the harness or physically on the radio and I guarentee that popping noise will go away. I've done about 5 panasonic decks and for some odd reason, they all experienced that problem. Why? I have no idea. I just am providing a solution to the problem since it is rather annoying. I have nothing to do with the design of there products.

zippyflu, when I say make sure it doesnt touch the positive tip inside of the RCA thats exactly what I mean. Make sure when wrapping a piece of the wire that u only do it on the outside of the RCA shield. If you are still unclear I will snap a few pics and post them tommorrow when I get to work of how it should look.

Hope this helps.

 

yes please snap some pics.. i have no idea what you are talkin about.. sorrie for being a noob.. and thanks alot

 

If you look at an RCA plug, there is a PIN in the middle of it. Then there is a metal ring around the outside. The shield is that metal sleeve. The PIN is the positive lead.



A is the pin, B is the shield. Make sure the wire is not touching the pin.

 

so now i have to splice it?

 

No you are not splicing anything. The pic is not the clearest but hopefully you get the idea. Wrapping a piece of wire around the RCA shield and the other side of that wire will to connected to a ground.

 

Camera phone ftl.

 

a huge

thats pretty ridiculous.

 

lol camera phone definately ftl, and ridiculous indeed. Sometimes you just have to ghetto rig it. Any ideas as to why panasonic decks do that? It happens on all decks including the flipout tv models.

 

engineering flaw is what it sounds like. i used to get a pop from all my speakers when i shut the the car off when i had my JVC deck, and i heard others had the same problem. you'd think companies would fix this crap.

 

ok i just did wat u guys told me to do.. i used the speaker wires from the left over wires from the harness and my headunit didnt turn on.. after i disconnected it, everything worked fine.. so am i doin something wrong??

 

Few questions.
1) what "leftover wires"?
2) After you disconnected what?
Be more specific so we can assist you more

 

1) left over as in.. i didnt need to use all the wires that came with the harness.. for example, i didnt need to use the front and the rear speaker wires since i used the rcas...
2) after i disconnected the wires.. as in after i took the wires off from the rca.. it worked again.. as in.. it turned back on..

but i met up with mike at the morrestown meet and he said to just pull some wires out.. and stick some into the rca plugs and plug it back in... so im goin to try that along with straighting my tv and re-wiring my ciggerate lighter so i can use it

 

guys can someone post the pic again of the RCA shield that I need to wrap the wire around? I just started having this problem with my pioneer headunit and this seems to fix it. Can I use 14GA speaker wire that I have left from my HT for this? And how do I get it to stay around the shield. Either way Im not sure I know what you are talking about in terms of the shield. Any havew the pic?

 

Are you f'ucking kidding? Does everything need to be spoonfed to you? Post #29.