I got the Roady kit free at Christmas for signing up for a second subscription under the Family deal.

Mounting the unit on the ashtray with velcro, the FM signal was too weak to reach the rear FM antennae in the glass.

However, the unit came with an extra piece that attached to the glass that touches the wires imbedded in the glass.

The result was a very strong signal to the stock unit and it has never sounded better.

The downside is a ton of wires running back to the cargo area, but I was able to pry them under various edges, carpeting etc.