I have a Black Box G98S (
http://www.amazon.com/gp/product/B01...ilpage_o05_s00), had to buy it after being involved in an accident where the other driver was at fault but blamed me; i had no evidence but the cop knew she invaded my lane. I did the install myself, very simple; depends if you want to use one of the lighter slots or if you want to tap into the ignition wires...I'm using the lighter slot under the glovebox but I've installed radar detectors using live wires instead.
-Huan