Originally Posted by 02SEMax

Okay so i saw an add for a good deal on this HU (~$100)

http://www.sonicelectronix.com/item_...-KD-X50BT.html

and because it has bluetooth i was thinking about getting it, right now i have

http://www.pioneerelectronics.com/PU...rs/DEH-P4200UB

and it would cost me more to get the bluetooth adaptor than to get that other HU. My question/problem is that the JVC only has 2 preouts (front & rear/sub) but on my current HU i use seperate rear and sub preouts b/c i have an aftermarket sub in the trunk. Could I make this work? Or would it sound like **** or what?

Advice/Help would be much appreciated

Thanks!

Originally Posted by installer

if you have just subs and no four channel amp youll be fine

Originally Posted by 02SEMax

I'm using the metra 70-7551, which uses 2 sets of pre outs, what am i supposed to do? Buy a rca-combiner so that 2 rcas go into 1 and put that into the front pre outs while using the rear/sub pre outs for the sub amp? Would that work or would it sound terrible? I don't really understand here, i'd like a new HU but not if it's gonna sound like **** b/c i have to share a set of pre outs

Originally Posted by installer

no go exchange that harness for the metra 70-7550 its the non rca nissan one it will work with the bose system if you use the 7551 it wont have to much volume you need an 8 volt output to create the volume needed on those rca's

Originally Posted by 02SEMax

I thought you had to use the 7551 in order to get the stock Bose amps to work

Originally Posted by djfrestyl

installer, just because you've been installing for 13 years does not mean you know every nuance of every car.

The question is NOT about turning the amp on. It's about signal level and speaker format.

Please confirm: From the aftermarket HU, you send an amplified signal to the Bose amp (to then get amplified again) via the speaker wires outputs?

Originally Posted by djfrestyl

installer, just because you've been installing for 13 years does not mean you know every nuance of every car.

The question is NOT about turning the amp on. It's about signal level and speaker format.

Please confirm: From the aftermarket HU, you send an amplified signal to the Bose amp (to then get amplified again) via the speaker wires outputs?

Originally Posted by installer

hi i didnt say i knew every car but idid say that if he changes to the 7550 it will use the speaker wired outputs instead of rca out puts which will enable him to use the sub output for strictly the sub and also i stated to run the rca to the deck and take out the high level but i dont think you read everything

Originally Posted by installer

if you have just subs and no four channel amp youll be fine

Originally Posted by installer

no go exchange that harness for the metra 70-7550 its the non rca nissan one it will work with the bose system if you use the 7551 it wont have to much volume you need an 8 volt output to create the volume needed on those rca's

Originally Posted by installer

no the metra 70-7550 will turn on the amp also ive been installing pro for 13 years i never use the 70-7551

Originally Posted by djfrestyl

You stated nothing about running RCA's or taking out a high level signal. I hope and assume the OP already has a set of RCA's run from the aftermarket deck to the aftermarket sub. You stated 3 things, and yes I read everything you posted.



Valid, the OP can use the 'rear/sub' RCA output for his aftermarket subwoofer amp.



You don't need 8 volts. The system can get plenty loud with less than that.




This one only states information about remote turn on only.

SO, that being said, the 70-7551 should remain because the Bose amp should ONLY accept a pre-out signal. It should NOT receive high level speaker wire signals.

Right now you need 3 sets of outputs, and all should be pre-amp level.
OEM front
OEM rear
Aftermarket sub

The HU you want to get only has two outputs.
Front
Rear/Sub

So as much as I hate recommending this, you may have to split the rear/sub outputs to send it to OEM rear and aftermarket sub.

The above is the cheaper way.

Here's what you can also do, which is what I think 'installer' was trying to imply.

Use the RCA 'rear/sub' outputs and send them directly to the aftermarket sub by way of the aftermarket RCA's you have run.

The speaker wires coming out of the aftermarket HU will have to be converted to a low level signal using a Line Output Converter. If you get one which has RCA outs, you can keep the 70-7551 and use those RCA's to interface properly.

Originally Posted by installer

i was actually stating to use the 70-7550 ive never used the 70-7551 i has no volume behind it you can run a high level signal into the bose amp thats how it is set up from the factory the stock head unit doesnt output low level only highe level..... and i was answering the same questions on 3 different post from different people about a head unit install so i could have possibly left something out yes....

Originally Posted by djfrestyl

WRONG.

The Bose head unit outputs a low level signal, the format of which just happens to be speaker wire. Nissan has no reason to use RCA's when standard wire will do - more cost effective that way.

Also, PLEASE start proofreading your posts and using correct punctuation. Reading your posts is very confusing and they can very easily be misinterpreted.

Originally Posted by installer

now what makes you think it outputs low level you cant do that with speaker wire doesnt work like that whats next are you going to tell me your an audio engineer

Originally Posted by djfrestyl

Seriously, just stop. You are incorrect. The signal wires coming out of the Bose HU are line level. This is a known fact and I've tested them myself. It's wire. It carries the signal. The 70-7551 is designed for this situation and proves that the format of the wire does not matter, just the signal strength/level.

And once again, please proofread your posts. Your poor spelling and grammar are not helping your case as a 'knowledgeable' source.

Lastly, if you are trying to hyperlink to something, try again.