I assume you added the ambient lighting as an aftermarket kit and not an OEM Honda part??

My Ambient lighting works directly with my headlights only and came with a dash mounted switch to turn it off and on.

In any case, you beat me to the HomeLink mod.... Ordering the navigational / homelink module from Honda is around $200.00. It is probably a lot cheaper than that if I call them directly. But in the crash guide book, it is around 200.00.

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1987 Chevy Spectrum - 200,000+ Miles -Junk Yard
1994 Honda Civic DX Coupe - Truck Hit it
1998 Acura 2.3 CL - End of Lease
2002 Acura TL 3.2 - End of Lease
2004 Acura MDX - End of Lease
2007 Mercedes ML350 -Lemon
2007 Honda Civic Hybrid w/Navi - Active