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Discussion Starter · #1 ·
Ok TT I need some input.

I have a 2012 Tundra with JBL system and OEM Nav. I'm in the middle of doing this install and I'm stuck.

My goal is to keep OEM Nav and utilize a JBL MS-8 processor along with an Alpine amp for the Kenwood 8" sub I installed.

My question is on the wiring. I've pulled the factory JBL amp out. Now how do I hook up the MS-8 so that it controls all the door speakers and dash speakers? Then how do I hookup the Alpine amp to the MS-8 so it powers the sub?

Any help is greatly appreciated. Really need a wiring diagram for the 2012 JBL system so I know which wires are what.
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