First find: SiGe SE4150L - GPS radio receiver with dual-antenna input GPS receiver IC (so no GPS+TMC integrated solution).

Big ceramic "IC" most likely a GPS-antenna (as it's exactly on the other side of the pcb).

PCB identifies as: Foxconn Rev. 1 G10N010 800661
More On Sticker:
FGH24X9
G10N010T01 LF
46003808-08L2

Big ICs Upper Side:
Sandisk SDIN5C2-4G - Flash Card 4G-byte 3V/3.3V Embedded MMC 169-Pin TFBGA
0319 C1HS 029 (SMD 16Pin, Non-Iso) - unknown
PIC16 F610 I/ML 061GPB (SMD 16Pin, Non-Iso) - 8-bit Microcontroller

Big ICs Lower Side:
CDU TI0BW Z49H (SMD 16Pin, Non-Iso) - unknown

OK, time for some hot air-surgery...

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Paydirt! This time we found gold!

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Not worth it! The lower side only hides some boring caps and resistors behind the metal shielding.

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But that's more like it! Let's see who the "big boys" are...

Winbond W9751G6JB-25 - DRAM Chip DDR2 SDRAM 512Mbit 32Mx16 1.8V 84-Pin WBGA

SiRFatlasV - all in one CPU/GPU-solution for navi devices, based around ARM11-core, also features GPS
Datasheet PDF: [Only registered and activated users can see links. ]

Hm. Interesting! But where's the FM-receiver for TMC hiding?