I just installed 2 alpine 10', type s, 4ohms. Single voice coil model. I wired the subs in parallel. The amp i have is alpine MRD M300 and was professionally installed. I am pretty sure that wired the subs correctly. The problem I have is that there are no sounds comming from the subs. Anyone know why this would be the case? Did I blew the subs? Any help would be appreciated. Thanks.