Position of GPS Antenna

[snowyriver]

Sorry if this has been covered...my searches came up empty.

How close to my ADHARS can I mount my GPS antenna?

I'd like to mount it about 3' from my VHF antenna and 18"from my ADHARS which is mounted inside the fuselage. I'm not even sure if they intererfere with one another or not. Thanks in advance. Craig

 

[dynonsupport]

The GPS is really low power, and not particularly full of metal. 18" will be fine.