\contentsline {section}{\numberline {1}Car Stereo Replacement}{1} \contentsline {subsection}{\numberline {1.1}Items Included}{2} \contentsline {subsubsection}{\numberline {1.1.1}I2C OLED display}{3} \contentsline {subsubsection}{\numberline {1.1.2}Internal AVR Temperature Sensor}{3} \contentsline {subsection}{\numberline {1.2}Wiring Pinout is wrong on Internet - Cable has labels}{3} \contentsline {subsection}{\numberline {1.3}Arduino VReg Blowout}{3} \contentsline {subsection}{\numberline {1.4}Amplifier}{4} \contentsline {subsection}{\numberline {1.5}AC Audio Coupling to Remove DC Noise from Auto}{4} \contentsline {subsubsection}{\numberline {1.5.1}Ground Isolator}{4} \contentsline {subsubsection}{\numberline {1.5.2}Capacitor Audio Coupling}{5} \contentsline {subsubsection}{\numberline {1.5.3}Impedance / ESR of capacitors failing to pass enough power of signal}{5} \contentsline {subsubsection}{\numberline {1.5.4}Wikipedia on Impedance}{6} \contentsline {subsection}{\numberline {1.6}DIY Amp}{7} \contentsline {subsubsection}{\numberline {1.6.1}LM383 is Obsolete}{7} \contentsline {subsection}{\numberline {1.7}Noise remains with Speaker Isolation}{7} \contentsline {subsection}{\numberline {1.8}References}{8}