After Starting Audio Mutes & Stereo Says Phone

[skywalka]

Hi guys,

Every time I start my work Caddy after about 10 seconds the audio mutes for about 10 seconds. On the Headunit it changes from AUX to PHONE when this happens.

There is an aftermarket bluetooth installed for phone calls only. I disabled this via it's settings but I still have the problem.

How can I stop the music muting?

Thanks.