so at the shop weve been installing an ipad for a customer. weve gotten everything done. amps dash piece, everything. but when we play music were getting horrible whine. were using the ipad to an audio contorl eq and lc1 for the volume. and the eq to mids amp and sub amp. weve tried almsot everything. noise filters new rcas better grounds but still have a whine when the ipad is on mute. mabey we missed something. hopin someone has an answer we can try out tommorow lol. btw its got a jbl 1000.4 and a orion 2500.D with an hcca 15 in it. hopefully itll be sick sounding but for now we need to fix the whine issue lol thanks