need info on what order to buy stuff
 

so I bought back in may a 08 impreza and now that I'm making more money I've started buying odd things with winter coming bought starter/alarm the winter tires now I'm ready for my system it won't be till spring until I can buy everything but should I buy a new head unit first I was looking at one with gps and Bluetooth or should I go the amp/subs first and then get the head unit later I'm not sure if I ned more than 1 amp to run my oem head unit and oem speakers with a couple subs and box any info wood be nice I was sorts looking at 1500 to 2000 for amp(s) and subs I'm in Edmonton if anyone here has any reccomendations

buy the head unit first, then get the amps and subs when you can afford it

buy thr head unit now and install it right away so you can enjoy it now..then do the rest of the system in the spring.

sounds good that was my plan just wanted to get some opionions first thanks