GenVibe - Community for Pontiac Vibe Enthusiasts

I installed the commander in the vibe. It works but I assume i'll get better quality if i hook up the antenna relay module. Where can I get the adaptor to make the 2 connections needed, since the commander and vibe are different sizes.

Circuit City / Best Buy/ Etc.Metra parts:Metra 40-GM10Metra 40-GM20

expensive?

Should be $12.99 apiece. So $26 + tax.