Anyone know what the problem is? I always have to switch to CD now when I turn on my rear defog as the radio gets all staticy.

 

i cannot give any solution to this problem.

but, dam that is classic material. ha!

is the nissan antenna wired into rear glass on a maxima? is it stock headunit? bose? if its aftermarket, installed by someone not diagnosed with down syndrome?

 

LOL no its all factory setup. Pretty sure the antenna is in the rear window

 

i dont think there is a solution to that.. mine does the same thing

 

if the antenna is in the rear window on a maxima, and the rear defogger is in the same rear window, what does that tell you? do they share a wiring harness- seeing as they both run from center console to rear window?

check it out, im sure you could figure it out if you thought things through for yourselves.

 

Sorry, but not all of us have the time to go through that. This board is for helping others out...Thats what should be done. Maybe someone has had this prob and could help me out.

 

One of the defogger lines is broken in the rear window,and it is causing all the noise you are hearing. If the defoger works all good, then the rear window is the culprit. Go have the dealer repleace the rear window glass, I see this happen on Acuras - where I work at all the time. Rear window deff and antenna do NOT share the same wire harness, they share the same wire loom and shielding, but they do not use the same wires to power the deff and radio diveristy antenna.

 

If you have a metalic tint that covers the dod matrix at the top you will get tons of static on AM only. Other that this I would suspect a bad ground somewhere.

 

Help! I have a similar problem, and this is the first post I have seen on it.

I recently bought an '01 AE and it came with tinted windows and factory bose with the antenna in the rear window defroster. I also get AM static when rear defrost is SUPPOSED to be on, but when I turn it on, the defrost button lights up, but it doesn't defrost. Any help would be appreciated on fixing the defrost first and secondly the AM static. It was already tinted when I bought it, and the previous owner told me about the AM static after he tinted the windows, but not the defrost. He probably had not used it since it was still warm out when I bought it.

My '96 Max's rear defrost has never been the best, but it at least works...any help would be appreciated. If I have to take it in, whats the estimated cost to fix? Thanks!

 

Have antenna on rear window which is covered w/ tint and no problems with AM or FM reception.

Did have another car with exterior trunk mt. antenna and on certain weak FM stations would get static when I turned on the rear defogger. When this happened, I had but 3 choices - turn off engine, change stations or drive closer to WHFS.

Not an RF or antenna specialist, but thinking outloud about what's going on electrically when the defroster is switched on. You're running what - 5-10A of dirty (unfiltered) DC thru a resistive grid of metal that's in very close proximity to the in-glass antenna. Radio signals are in uV so it doesn't take much to mess up a clean radio station. The DC has a lot of AC ripple on it due to the 3phase (was in older cars anyway) rectifier circuit in the alternator/voltage regulator and that's one source of what you might be hearing.

As the alt. load increases so does the ripple unless filtered somehow and I dont' think Nissan does that for us. And that's where I'm thinking may be a place to start: if you filter the DC that's going to the defroster and
reduce the hash on the defroster grid, you may be able to quiet things down.

Get a 15A car stereo power filter. You want one that has at least one inductor in it (some have 2-3) - like a metal cased potted type. $15 at car parts places. Insert the filter between the 12v source and defroster. Add a large capacitor to ground at the outup of the filter. These things often come with an electrolyic cap that's about 1000uF or so. If the kit doesn't have one, get one at Home Depot (joke). Add a .1 or .01 uF disc cap as well since hi freq need filtering too and the big electroylitic caps won't help there. Grounding the filter is critical so a fat wire to something solid is imperative.

And as I typed all this, perhaps a better, no-cost starting place would be to see how things are grounded for the defogger and the antenna (and/or preamp near rear window?) If they share grounds, grounded close to each other or on same screw, or the defroster one isn't good enough the static can couple in thru a poor ground. Even if you filter the 12v, if the grounding is sloppy it won't help.

May turn into a lot of easter-egging until you stumble on something that helps.

Maybe easier to switch on the CD.

 

You need a new glass rear window. Window defogger line(s) is broken creating EMI, hello anyone read my post ? I deal with this on regular basis on Acuras, which have window mounted antennas just like our Maximas. If you dont wanna spend the $$$ to fix the rear window, then just dont listen to the radio with the defogger on.

 

This used to happen on my 1997... It pissed me off really bad and I did notice that some of the strands didnt work ... Maybe that caused some of it?...

 

Yes broken window deffoger lines WILL do this. It could also be a bad antenna cable.

 

Yes we did but hard to believe this is the ONLY possible explanation. A broken trace can radiate, but coupling mechanisms for such things can be conducted (thru wiring) as well. And there are lots of ways radiated emissions could get it. Poor or sloppy grounding is freq. suspect tho certainly a broken trace would be be an obvious starting pt. Was pretty late last night but even in daylight TDot's posts didn't say a broken trace - he just said static.

My Toyota did it and there were no broken traces, and since only weaker stations never bothered with it.

And you say replace the whole back window for a broken defroster line? have repaired # of these on previous cars with conductive paint. You saying the lines of a Max are embedded in the glass? I tinted the back window and there are clearly bumps in the film from the lines suggesting surface mounted to some extent but no way to check now.

That would suck to replace the whole f#)(@$# window to get the defogger to work. Maybe drive backwards behind a lot of gravel trucks and pray for a big stone to fall off ???

 

My window deforgs perfectly fine though. All lines defog

 

do this.. we all have glass insurance... in mass where im from theres no deductible...
take a hammer to the rear window and you dont have to pay

 

Insurance fraud. You thought that was a good solution?

All your doing is putting the cost of your window on everybody else. Insurance fraud causes everyone's rates to go up. So, thanks for that.

 

And for those of you that have a heart attack about insurance quotes and rates, you can thank guys like Redsox, that advocate insurance fraud to get stuff you should fix on your own done.

Kinda like that other guy that told a member to lie about being the original owner of a RSB so he could get free brackets.