Thanks for this Julius..
The shop that installed this HU was Auto Intensity. I told owner Mico Sy about the reception problem and even showed him the posts (blue wire needing to be powered etc.) on the net, the info here at Tsikot plus the info on the manual and his reply was: "sige ipapagawa ko yan sa mga tao ko...pero hindi ko yan sagot kung masusunog yan..."
Of course being a noob in car audio i was not willing to take the risk. tsk...