I've used crimping, my friends use crimping, one of which is a Master MECP certified installer. Unless you're going with a system that'* gonna be bumping (which, sadly, you are not, haha), crimping is fine.

iv always used crimp... never had a problem.

its really not hard at all sqela... i could walk you through it over the phone

Believe it or not, a quality crimp with the appropriate tools is actually MORE reliable than soldering. ALL the connections in automobiles are CRIMPED!! There is a reason for it.

Crimping creates less of a stress concentration on the wire than soldering. In my experience in electronics manufacturing and design, crimping is preferred...

(Granted, the chances of fatigue on a soldered connection in our applications are between slim and none, but the point is that a proper crimp is actually better)

alright bought a deck but im confused i got 2 adapter plugs they connect to each other and one end connects to stock wiring the other the HU. do i even need to actually cut anything? :?:

btw its a pioneer DEH-P2900MP

No you don't need to cut anything but you might want to cut the wires on the pioneer harness all to the same length to make things a little neater.

I'm pretty sure the Yellow (12 volt constant) and the Black (Ground) wires are longer than the rest of the wires, cut these to the same length as the rest.

Then its simple, just wire the two harness' colour to colour and then plug them in.

Did you remember to get the mounting bracket ?
http://www.bestkits.com/ViewImage.as.../bkgm3320b.jpg

Regards,
Dutch

Got the bracket kit but it didn't need it. Went in 1...2..3..

I put the 'sleeve' in pushed the tabs then put the deck in and it went right in. It was nice and tight and even after severak donuts in an empty parking lot followed by a sudden stop while going in reverse the radio stayed in.

Thanks to petaman and badnit for the phone walkthrough