QUOTE(MobyDick @ Jul 1 2008, 02:46 PM)
Pros & cons of FM reception; if it's a ori factory fitted internal antenna than memang 'chun' for both Japanese or German vehicles. Our local assy fittings even as advertise using using German or Japanese technology all sucks due also to the cmpetitive selling price. Best value & quality reception for aftermarket installation is no other than the old fashion motorised vertical ones(Harada Japanese brand). Past experience from the German cars OEM internal antenna even from the early 90" have shown to be done with alot of R&D incorporated to the rear & front glass together using multiple digital-pulse signal boosters providing 'Umbrella' coverage. Later systems incorporated with the visible rear roof 'Dorsal' & quarter-glass further improve the 'Umbrella' concept reception. Of course all this R&D cost were also added into the actual factory price of the car which may to about $2K for each car; if one these marques cost in excess of $400K than no problem-lah. Nothing like those ppl who install 'Brothers' cap-ayam 'Dorsal' antenna expecting to get those performance.

I tend to agree with you. Don't expect to pay lower price for better quality product. Unfortunately, I went through the hard way and money spending way to know this. You know what I did last night? I unplugged the one week old external antenna and plug back the original internal antenna. Come to think of it now, the original antenna quality is the best among the three (see below) I had installed:
Previous History:
1. Cap ayam internal antenna.
2. Bosch internal antenna
3. Cap kambing external antenna.
Now:
Original old windscreen internal antenna.
By the way, I am driving imported Nissan Bluebird Sylphy 1.8 - similar to local Nissan Sentra.