I know there is the "Secret Audio" system out there, but it seems a little pricey. There are other systems out there that use a tethered remote that you could just as easily hide and install somewhere.

http://www.onlinecarstereo.com/CarAudio/p_20872_Clarion_MW1.aspx

Here's a smart phone option:

http://store.sony.com/wcsstore/SonyStyleStorefrontAssetStore/pdf/selectapp.pdf

Last edited by Whitedog; 02/02/2013 3:18 PM.

1954 3600 Chevy Truck
"The Fake Truck"
In the Stovebolt Gallery
More pix on Photobucket