help combining a product and plugin

[harmor19]

I have made a product and a plugin and I would like to combine them so the person doesn't have to run both files.

Contents of the product

<?xml version="1.0" encoding="ISO-8859-1"?>

<product productid="custom_links-Andrew Harmor" active="1">
	<title>Custom Links</title>
	<description>Add custom links in a drop down box on the navbar</description>
	<version>1.0.0</version>
	<codes>
		<code version="1.0.0">
			<installcode><![CDATA[
$db->query_write("CREATE TABLE `" . TABLE_PREFIX . "custom_links` (
  `linkid` mediumint(10) unsigned NOT NULL auto_increment,
  `url` varchar(120) NOT NULL default '',
  `name` varchar(20) NOT NULL default '',
  PRIMARY KEY  (`linkid`)
);");
$db->show_errors();]]></installcode>
			<uninstallcode><![CDATA[$db->hide_errors();
$db->query_write("DROP TABLE `" . TABLE_PREFIX . "custom_links`;");
$db->show_errors();]]></uninstallcode>
		</code>
	</codes>
	<templates>
		<template name="custom_links" templatetype="template" date="1128881080" username="harmor19" version="3.5.0"><![CDATA[$custom_links
]]></template>
</templates>
</product>

Contents of the plugin

<?xml version="1.0" encoding="ISO-8859-1"?>
<plugins>
	<plugin active="1">
		<title>Custom Links</title>
		<hookname>global_start</hookname>
		<phpcode><![CDATA[ //edited so no one will steal it]]></phpcode>
	</plugin>
</plugins>