Want to put a bluetooth kit in an '07 SRX. Looking at the dash, there aren't many great places to put the control device. I've thought about trying to find one that could be placed in the ashtray. I would appreciate any help with the best kit and control device placement. BTW, I love the bluetooth in my '06 STS and can't believe Cadillac doesn't put it in all of their vechiles. Thanks for your help.