I have finally done it. A remote concealed power and mute buttons and the ashtray of my 2003 BMW 530. This allows for quick and stealth turning off of the V1, especially handy here in Ontario. Fishing the wire down from the headliner was the toughest part. It took two tries to get the right type of wire. Decided that solid core CAT3 wire was the way to go. One pair for power and the other pair for mute.
Check it out here!