Installing Kenwood Nav/dvd/sat

[Charlie97L]

hey guys, i just wanted to know what the best install option was for my situation... 94 es300. i really like how the factory setup sounds, but i want to put in my kenwood unit.

should i just rip everything out and do new speakers/wiring?

can i install the nav, and an aftermarket 4 channel, and use that with the factory speakers?

i know bypassing the amp usually sounds like garbag on the factory speakers. just looking for advice. i've done a fair bit of car audio, just not worked on any lexus'

[Charlie97L]

nevermind, i got the 70-8112 harness. worked great once i threw on some ground loop isolators.

now i just have to figure out how to mount it.