I want to build a custom system in my ride. im looking for someone who can do hi quality work. please let me know!

I don't know where you are located, but the Al & Ed's at Ontario Mills Mall does some nice work. They have done work for me and many friends in their boats, trucks, Rhinos, etc. Darren Sprayberry, the lead installer is rated top 5 in the SoCal area.

Competition Soundworks (sp?) does lots of manufacturer demo cars. Might be pricy though