This is the place I use fo Audio, they also do performance parts for most popular Japanese cars. They prep some cars for SEMA among other nice customer cars including Z's. The Uchida's are very friendly people. Check out the shop Supra and AE86, they are really well done (if they still own both).
Ask for Ryan or Lisa
Creative Car Audio & Motorsports
15421 Carmenita Rd., Unit N
Santa Fe Springs, CA 90670
Tel. 562.623.0777
Fax 562.623.0888
email.
creative_carz@yahoo.com
Here's a few pics I found online. The Supra I couln't copy the location but here is the
LINK