[Hallicrafters] GPS in acft.

[TC Dailey]

Yes, an A&P who's an AI would usually do it, but better safe than sorry - 
really.  Asking is free  -  (oh, I forgot... it's an airplane - HI HI HI:)

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> I thought the rule was that if the additional weight of the radio
> installed was less than 1% of the aircraft weight, then only a log book
> entry was needed by an A&P provided the A&P did the work.  If he wished
> he could approve work by someone else.
>
> Jim/W5JO