That's the same as I have on mine. Should be fine. I had stuck to the top of the mfd3 unit in mine with no problems but some People say it's better stuck on the metal bulkhead behind.
 
That's the same as I have on mine. Should be fine. I had stuck to the top of the mfd3 unit in mine with no problems but some People say it's better stuck on the metal bulkhead behind.

Okay hopefully will get a signal where you say, don't fancy running the antenna any further round the car than I have to!