Full list of compatible devices WAS there a couple of days ago, it has now been removed.
Well - the day after I posted and checked the Garmin link, Garmin have taken it down !!
Active GPS have some info about it and say that it is compatible with the following devices.
What about it ?Garmin 1999 NavTalk, ADS-B Antenna, aera 500, 510, 550, 560, 660, 795, 796, Colorado 400i, 400t, eMap, GDL 39. 39 3D, 51, 52, GPS 12CX, 12MAP, 12XL, 15, 15H/15L, 15x, 15xH/15xL/ 25, 60, 76, GPSCOM 170, GPSMAP 60, 60C, 60CS, 60Cx, 60CSx, 62, 62s, 62sc, 62st, 62st, 64, 64s, 64st, 64x, 64sx, 64x, 64sx, 76, 76C, 76CS, 76S, 76Cx, 76CSx, 78, 78s, 78sc, 96, 96C, 175, 276Cx, 620, 640, 695, 696, iQue 3000, 3200, 3600, M3, M4, M5, Montana 600, 600t, 610, 610t, 650, 650t, 680, 680t, nuvi 300, 310, 350, 360, 370, 5000, 600, 610, 650, 660, 670, 680, 710, 750, 755, 760, 765, 770, 775, 780, 785, 850, 855, 880, 885, Quest, Quest 2, StreetPilot 2610, 2620, 2650, 2660, 2720, 2730, 2820, 7200, 7500, c310, c320, c330, c340, c510, c530, c550, c580, i2, i3, i5, zumo 400, 450, 500, 550, 660, 665.
Well - I found one in the bottom of my parts drawer. Many years ago, I traded in my 550. Actually, I sent it for repair and it was obsolete and they sent me a brand new Zumo 660. I ahd also bought a Ford car which had heated front windscreen. And the heated windscreen blocked the satnav signal. So I bought the antenna. And then the 660 started finding the signal with no problems at all. So this thing is brand new and has been sitting int he bottom of a drawer, unused.
So if anyone wants an external Antenna, you are welcome to it.
But UK only please, I'm not filling in custom forms, and if more than one person has expressed an interest, I will select whomever, in my opinion, has contributed most to the forums - either in the quality of answer(s) or quality of question(s).
I'd better mention @Stu in case this sort of devisive activity is not welcome on this forum !