I just found your forum.
I'm just starting the process of upgrading my stock 99 Buick Park Avenue Ultra's stock system.
Going for the Ultimate Sleeper sound system. Basically, the stock head unit with many hidden mods. Gotta keep those steering wheel controls!
Hope I can get some opinions and direction from you guys.
I'll detail my plans, the build, and the results as I go.
I'm an active member at a few other car related forums (RegalGS.org, V8Buick.com, etc.) so hopefully my net-iquette is up to par.
Look forward to using the resources here.