FM Radio reception in my 2017 GTSR is really patchy in metro Melbourne. Some areas are good - but others (like the Tulla freeway ... and Toorak Rd from about Burwood onwards if heading towards the City) are really poor (drops out to mono, crackles, hisses etc). I have read that many of the guys on here have had great success fitting a Mazda CX7 antenna ( http://www.ebay.com.au/itm/New-Genu...also-suit-Mazda6-BT-50-EG2366A30/263152943812 ) to their VE Commodores ... but I'm not sure if the same success applies for VF. Also, my previous car (VE2) has a slightly smaller thread for the antenna (I think it might be an M4 thread ... approx 4mm) than my GTSR (looks like an M5 ... approx 5mm thread) ... and also my VE2 did not have Satnav. Anyway, I would love to know whether anyone has experience with the Mazda CX-7 solution on a current VF2 model with satnav / GPS? Is the thread the right size? Does the GPS still work fine? Is the FM reception improved? I've looked at these little Walkinshaw stubby bee sting units as well - http://www.ebay.com.au/itm/Genuine-...rt-Antenna-to-suit-VF-Commodore-/152062358469 - but some say the reception is worse with these (not surprising I guess - given the size) ... or at best it is about the same (just with a better looking antenna). For me - looks are secondary - I just want better FM reception if I can get it. Thanks a lot for any help.