Semopar Forum

**4XLGator** · 08-10-2011, 09:01 PM

I have been stereo shopping for the last couple of weeks. I'm not sure what year Dodge started it, but my truck definitely has a CANbus system and thus requires two modules (about $80 each) to connect to the factory wiring. One is to turn on the factory amplifier and the other is to interface with steering wheel controls. Even if you don't want steering wheel controls, there is still another module you have to have...which seems odd to me.

Now, I was planning a complete upgrade until I saw pricing on the HU's. And I cannot believe the pricing discrepancy for the same exact HU between sellers. The main one being Crutchfield...they are $500 more than the best price I've found. If what Patrick says is true, I will call Crutchfield for a price match, because I have bought a few stereos/CD changers from them and their tech support is second to none in my opinion.

**AWE Daniel** · 08-10-2011, 10:10 PM

Lee the reason you will need that extra module is because car companies are starting to run the door chime circuit through the door speakers, so they run a loop through the head unit, so if you dont get that module, the loop doesnt close right and funny things happen.

At least this was the way it was in my Caddy, Im sure its pretty much the same deal in all the newer vehicles.

**Preston2291** · 10-10-2011, 03:08 PM

when i ordered my HU from crutchfield since it was over a certain price they gave me a 50% discount on the module for the aftermarket headunit

**Preston2291** · 10-10-2011, 03:09 PM

also i was just thinking, i will be getting an aftermarket system in a little while so lee if you do need the module i will let er go for a cheaper price cause your SEM family

**Preston2291** · 10-10-2011, 07:07 PM

no lee when i replaced my factory HU i got the module.

if you check my post in the audio section called new audio system, im getting rid of the factory infinity speakers and amp and going all after market

**4XLGator** · 10-10-2011, 07:57 PM

^ Yeah, saw your other post after I commented but got sidetracked and forgot to come back to this one and edit. It depends on what kind of stereo you have and what kind I buy, unless you bought a universal module.

And what about your steering wheel control module....you're going to keep it, right?

**Preston2291** · 10-10-2011, 08:17 PM

the one for the factory one i got is a universal for most 2002-2009 vehicles from what crutchfield told me.

and about the steering wheel module i never got that one so ive been rockin the old school HU knob method, lol...its on my to do list after my speaker upgrade, lol