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Electric cutouts installed and now radio / speakers not working

11K views 2 replies 2 participants last post by  karellan 
#1 ·
I splurged on a no weeds electric cutouts kit and had a local shop install it rather than try to do it myself. Procharged 2005 300c.

NOWEEDS - NOWEEDS

The kit sounds great and seems to seal tight enough there's no leaks when closed which was important to me (past electric cutout kits from other manufacturers always leaked or smelled or broke over time)

But I have an unfortunate followup issue.

When I first picked it up, 1) the electric seat controls for the driver seat didn't work and 2) the radio didn't work at all. When I tried to turn radio on, the screen would flash on and off endlessly like I was hitting the power button on and off.

After a few more drives the electric seat started working and radio will turn on but has almost no reception and only the front right speaker is working. None of the other speakers in the car are emitting any sound.

Obviously the shop that installed probably tapped into something sloppily or accidentally pulled on a speaker system related wire but I had it installed by them because I'm terrible with electric. The no weeds kit mainly deals with wiring under the driverseat but when I look there its a mess of harnesses and I don't know where to start to troubleshoot.

Any hints or ideas about where to look guys?

I'm willing to do some troubleshooting or take to another shop but don't really understand all the wiring going on in the area enough to know if this is a disconnected wire type issue or an overload by tapping into wrong electric for the no weeds cutout kit etc.

I've brought it back to the shop but they couldn't figure it out and are slammed. It's a bit complicated and I don't expect to bring it back there to have them fix it at this point. They would more likely give me a discount which I'm fine with but I've still gotta get this figured out.

Never had any radio or speaker or front seat control issues before so obviously its related to the cutouts electric install.
 
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#3 ·
Just following up on this for any future gremlin chasers... there was an open power loop of some kind that I guess was just shutting down less necessary aux items.

It doesn't seem to have even been related to the install. Just that little extra bit of needed power showed the weakness in the system.

My mechanic did the troubleshooting and replaced the warrantied alternator on his dime along with closing that loop. I've reconnected the no weeds system and it works beautifully along with radio and seat being fine.
 
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