Alpine head unit install in 02 Silverado

[nubuilder]

Man, I wish getting to the back speakers in the GMT-400's was that easy. I swear the engineers made factory speaker replacement the biggest PITA possible. I gotta take out the seat and ALL the plastic.

It's not worth the effort, trust me.

Ya, but I already had 4x6 speakers so I wanted to use them and have all the speakers match. I never really hear them (you should only have the rears set up to "fill" in, not be clear and loud). However, on the GMT-400's, the speakers are right by the passenger's ears....sooooo.....whenever someone sits back there I have to turn it down (once again bad engineering; at least they fixed it on the 800's).

 

[thunderstruck]

No I didn't run a dedicated power to the amp or ground. The way Alpine instructions read to just plug head unit into amp and amp into factory wiring harness.

From Crutchfield's website:

"Note: The factory radio circuit needs to be a minimum of 15A. If it is not, a separate power and ground will need to be installed for the KTP-445."

IIRC, the radio circuit is fused at 10 amps, and the factory wiring is barely adequate to handle that. Even if it's not blowing the fuse, you would be doing the amp, headunit, and wiring a big favor by giving the amp it's own dedicated circuit.