Guys, I've ditched the Columbus head unit for an all singing and dancing more up to date head unit but I'm having issues with FM radio reception.  The aftermarket unit has supplied an aerial to single FAKRA connection but the Columbus has two blue and one white FAKRA connectors. I've tried all 3 connections but reception is still crap. I've now bought a twin FAKRA to aerial connector but which 2 out of the 3 connectors do I use? Anybody who's had this issue did you sort it out? TIA

You have to use one or both of the blue connectors. But you may have an issue with power for the antenna amplifiers. Does your new unit supply power on the antenna cable?

44 minutes ago, andrehj said:

You have to use one or both of the blue connectors. But you may have an issue with power for the antenna amplifiers. Does your new unit supply power on the antenna cable?

It has an amplified unit with a blue wire to be attached to the switched live to power it. So just use the two blue Fakra's and ignore the white one?

Yes. I was sold this adaptor. https://www.dynamicsounds.co.uk/ct27aa179-skoda-all-models-twin-fakra-to-din-and-iso-antenna-adapter.html
It seems to work well for fm reception in my 2010 Superb, connected to the dual fakra cable and with the blue wire connected in to the blue wire of the iso harness. 
 

I don’t know what the single fakra is for. I’m assuming it’s an AM or gps antenna as my Columbus unit didn’t have DAB. 

Edited 27 June, 20232 yr by DougT