In-Car Entertainment

I.C.E. Or rather In-Car Entertainment. Yup, like every other car audio enthusiast, I've finally upgraded my stock system after months of doing research and choosing what brand/model to go for. Though it may not be comparable with those found in the car audio competitor's world, nevertheless I'm satisfied with what I've built so far.
Head Unit
This is where it all begins. Whatever the rest of the system includes, the sound starts here. Choosing the head unit is my greatest consideration because if a poor one was chosen, no matter how good the equipment down the line is I'll be stuck with low quality sound. Budget constraint is another consideration which I've to bear with too. The Alpine CDM7834E won my approval due to it's price and features. This single disc In-Dash CD Player/Receiver contains a powerful 35W 4-channel amplifier in addition to an AM/FM tuner. With its easy to use and friendly front interface, it featured a regulated 1-bit DAC with 8-Times Oversampling Digital Filter. For security, it has an Anti-Theft Detachable Front Panel which can be easily release.
Front Speakers
I chose the Alpine SPS-1326 for excellent sound quality and reasonable price. It fits in perfectly, replacing my front stock coaxial speakers on the front door panel. Perfect fit with excellent sound.
Rear Fill
Currently, I'm still using the rear stock coaxial speakers that came with the car. Not a bad set of speakers which can handle up to 100W Peak Power. I'll be changing it into component sets when I've the budget later. As for now, it serves it purpose well.
Subs
Caliber Audio 12" Subwoofer. Bought it at a bargain price during a warehouse sale. It provides the low signal from a box enclosure which sits in my rear trunk.
Amplifiers
This is the main amplifier which I use to drive my front and rear speakers. The Alpine MRV-F405 is a 4/3/2 channel power amplifier which provides 50W RMS per channel. It has a built-in crossover network and also a built-in parametric equalizer for tweaking and fine-tuning the sound. All in all, it's a powerful amp from a brand you can trusts will give you the best performance.

Audiovox AVX150. Transferred it from my previous car to drive my subs. This two-channel amp provides 150 Watts RMS to my subs. It is bridged mono into my subs' 2ohm load.